Which number replaces the question mark?

2023

Which number replaces the question mark?

Answer: C. 22Rule: each term equals the sum of the two previous terms minus 4. 3 and 6 → 3 + 6 - 4 = 5 6 and 5 → 6 + 5 - 4 = 7 5 and 7 → 5 + 7 - 4 = 8 7 and 8 → 7 + 8 - 4…

  1. A.

    20

  2. B.

    21

  3. C.

    22

  4. D.

    23

Attempted by 13 students.

Show answer & explanation

Correct answer: C

Rule: each term equals the sum of the two previous terms minus 4.

  • 3 and 6 → 3 + 6 - 4 = 5

  • 6 and 5 → 6 + 5 - 4 = 7

  • 5 and 7 → 5 + 7 - 4 = 8

  • 7 and 8 → 7 + 8 - 4 = 11

  • 8 and 11 → 8 + 11 - 4 = 15

  • 11 and 15 → 11 + 15 - 4 = 22. Therefore the missing number is 22.

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